From: "Jürgen Groß" <jgross@suse.com>
To: Paul Durrant <pdurrant@amazon.com>,
xen-devel@lists.xenproject.org, linux-block@vger.kernel.org,
linux-kernel@vger.kernel.org
Cc: "Konrad Rzeszutek Wilk" <konrad.wilk@oracle.com>,
"Roger Pau Monné" <roger.pau@citrix.com>,
"Jens Axboe" <axboe@kernel.dk>
Subject: Re: [PATCH] xen-blkback: prevent premature module unload
Date: Fri, 13 Dec 2019 10:00:44 +0100 [thread overview]
Message-ID: <0a83ebaa-40b8-55f0-cff0-5aaf7bc14e98@suse.com> (raw)
In-Reply-To: <20191210145305.6605-1-pdurrant@amazon.com>
On 10.12.19 15:53, Paul Durrant wrote:
> Objects allocated by xen_blkif_alloc come from the 'blkif_cache' kmem
> cache. This cache is destoyed when xen-blkif is unloaded so it is
> necessary to wait for the deferred free routine used for such objects to
> complete. This necessity was missed in commit 14855954f636 "xen-blkback:
> allow module to be cleanly unloaded". This patch fixes the problem by
> taking/releasing extra module references in xen_blkif_alloc/free()
> respectively.
>
> Signed-off-by: Paul Durrant <pdurrant@amazon.com>
Pushed to xen/tip.git for-linus-5.5b
Juergen
prev parent reply other threads:[~2019-12-13 9:00 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-10 14:53 [PATCH] xen-blkback: prevent premature module unload Paul Durrant
2019-12-11 11:28 ` Roger Pau Monné
2019-12-11 13:27 ` Durrant, Paul
2019-12-11 13:55 ` Roger Pau Monné
2019-12-11 13:56 ` Jürgen Groß
2019-12-11 13:57 ` Durrant, Paul
2019-12-13 9:00 ` Jürgen Groß [this message]
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